package com.leyou.service;

import com.github.tobato.fastdfs.domain.StorePath;
import com.github.tobato.fastdfs.service.FastFileStorageClient;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;

@Service
public class UploadService {

    private static final Logger LOGGER = LoggerFactory.getLogger(UploadService.class);

    //支持的文件类型
    private static final List<String> suffixes = Arrays.asList("image/png", "image/jpeg");

    @Autowired
    private FastFileStorageClient storageClient;


    public String uploadImage(MultipartFile file) {


        try {
            //1.图片信息校验
            //1) 校验文件类型
            String type = file.getContentType();
            if (!suffixes.contains(type)) {
                LOGGER.info("上传失败,文件类型不匹配:{}", type);
                return null;
            }
            //2) 校验图片内容
            BufferedImage image = ImageIO.read(file.getInputStream());
            if (image == null) {
                LOGGER.info("上传失败，文件内容不符合要求");
                return null;
            }
//            //2.保存图片
////            //1) 生成保存目录
////            File dir = new File("D:/test/upload");
////            if (!dir.exists()) {
////                dir.mkdirs();
////            }
////            //2) 保存图片
////            file.transferTo(new File(dir, file.getOriginalFilename()));
////
////            //3) 拼接图片地址
////            String url = "http://image.leyou.com/upload/" + file.getOriginalFilename();
////
////            return url;

            //2. 将图片上传到FastDFS
              // 1) 获取文件后缀名
            String extension = StringUtils.substringAfterLast(file.getOriginalFilename(), ".");

            StorePath storePath = this.storageClient.uploadFile(file.getInputStream(), file.getSize(), extension, null);

            return "http://image.leyou.com/" + storePath.getFullPath();

        } catch (IOException e) {
            return null;
        }
    }
}
